/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
 
		String s = "mutuallyexclusive";
		Pattern pattern = Pattern.compile("(?U)(?:\\W\\w|\\w\\W)");
		Matcher matcher = pattern.matcher(s);
		if (matcher.find()){
			System.out.println(matcher.group() + " word boundary found!"); 
		} else { System.out.println("Word boundary NOT found in " + s);  }
	}
}

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